CN207472571U - Diesel engine fault detection device - Google Patents

Diesel engine fault detection device Download PDF

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Publication number
CN207472571U
CN207472571U CN201721073710.2U CN201721073710U CN207472571U CN 207472571 U CN207472571 U CN 207472571U CN 201721073710 U CN201721073710 U CN 201721073710U CN 207472571 U CN207472571 U CN 207472571U
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CN
China
Prior art keywords
module
data
fault detection
diesel engine
sensor
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Expired - Fee Related
Application number
CN201721073710.2U
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Chinese (zh)
Inventor
谢小平
任长合
余世林
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Zhenjiang Watercraft College of Pla
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Zhenjiang Watercraft College of Pla
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Priority to CN201721073710.2U priority Critical patent/CN207472571U/en
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Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Testing Of Engines (AREA)

Abstract

The utility model is related to the Technigue in Trouble Hunting of Diesel Engines field, more particularly to a kind of diesel engine fault detection device.Including data acquisition module, data memory module;Fault detection module and fault alarm module;The data acquisition module is communicated by CAN bus and data memory module;The data memory module communicates to connect the fault detection module;The fault detection module and the fault alarm module are communicated by CAN bus;The fault alarm module shows failure and alarms.Data target when the utility model data collecting module collected diesel engine is run, by CAN bus the data transmission detected to data memory module, fault detection module analyzes the data in the data and data memory module of acquisition, and detection is out of order, and then alarm module is alarmed.

Description

Diesel engine fault detection device
Technical field
The utility model is related to the Technigue in Trouble Hunting of Diesel Engines field, more particularly to a kind of diesel engine fault detection device.
Background technology
Diesel engine is the major impetus system of my land air force ships and light boats, is inevitably occurred in use Failure, the generation of these failures not only influence the normal operation of equipment, can be caused an accident when serious or even jeopardize personal safety. For this purpose, how effectively to carry out condition monitoring, quick diagnosis to diesel engine and fix a breakdown, the safe and reliable of diesel engine is improved Property, become the important topic that people study for a long time.
At present, the diesel oil machine testing of ships and light boats army relies primarily on thermal parameter monitoring and the personnel of electromechanical department are on duty, leads to It crosses the thermal parameters such as monitoring delivery temperature, rotating speed, oil temperature, cooling water outlet and inlet temperature and electromechanical personnel's real time monitoring is come really The normal work of protection diesel oil machine.Electromechanical departmental staff depends on experience, and diesel engine is supervised using the methods of listening, see Control.The effect of monitoring is on the one hand dependent on the stability and sensitivity of monitoring system in itself, on the other hand dependent on electromechanical department The working experience and working condition of personnel.
For this purpose, we are analyzed by the fault mode to diesel engine and feature, diesel engine fault detection system is improved The detectability of system, detection and repair for diesel engine provide scheme.
Utility model content
The purpose of this utility model is to solve above-mentioned problems of the prior art, provides a kind of diesel engine fault detection Device, the real time execution parameter which is used to acquire diesel engine are analyzed, are alarmed.Based on the purpose, this reality Technical solution with novel use is as follows:
A kind of diesel engine fault detection device, including data acquisition module, data memory module;Fault detection module and event Hinder alarm module;The data acquisition module is communicated by CAN bus and data memory module;The data memory module communication Connect the fault detection module;The fault detection module and the fault alarm module are communicated by CAN bus;Institute Fault alarm module is stated to show failure and alarm.Further, the data acquisition module includes temperature sensor, pressure Sensor, power measurement sensor, speed probe and torque sensor and audio collection sensor.
Further, the temperature sensor includes thermal resistance temperature sensor and thermocouple temperature sensor.
Further, the pressure sensor include for measure lubricating oil into machine pressure, booster exhaust back pressure based on Ceramic thick film principle sensor and the quartz pressure sensor for measuring cylinder pressure.
Further, the CAN bus uses TA7V05 chips.
Further, the data memory module is computer, is stored with diesel engine fault data, the fault detection module Module according to being stored in the data of data collecting module collected and data memory module is compared, and judges the operation of diesel engine State.
Further, the fault alarm module includes display screen, buzzer and alarm lamp;The display screen is used to show Warning message, buzzer and alarm lamp are conveniently used for audible alarm and indicator light alarm.
Compare the prior art, and the utility model has following advantageous effect:(1)Data collecting module collected diesel engine is run When data target, by CAN bus the data transmission detected to data memory module, fault detection module is to acquisition Data in data and data memory module are analyzed, and detection is out of order, and then alarm module is alarmed;(2)CAN is total Line message transmission rate is high, it can be achieved that full distributed multi-computer system, and point without host and slave processors, and each node is actively sent Message, it is convenient to form multi-computer back-up system.
Description of the drawings
Fig. 1 is the functional block diagram of the utility model;
Fig. 2 is the system block diagram of 7V05 and key industry application interface figure.
Specific embodiment
The utility model is further described with reference to embodiment and attached drawing.
Embodiment 1
As shown in Figure 1, a kind of diesel engine fault detection device, including data acquisition module, data memory module;Failure is examined Survey module and fault alarm module;Data acquisition module is used to acquire diesel engine performance parameter;Data acquisition module is total by CAN Line and data memory module communication;Data memory module operates all data in the detecting system, is managed, is safeguarded, is deposited Storage, Check are ask;Fault detection module judges whether diesel oil operating is normal;Fault detection module and the fault alarm module pass through CAN bus communicates;Fault alarm module shows failure and alarms.Data acquisition module is mainly responsible for required Parameter is acquired, and deposit data memory module is transmitted by CAN bus, and fault detection module is by data Reason, analysis carry out alarm and maintenance suggestion so as to judge the state of diesel engine, according to different states.
Data acquisition module includes temperature sensor, pressure sensor, power measurement sensor, speed probe and torque Sensor and audio collection sensor.By setting particular sensor, carrying out collection in worksite to power-equipment other parameter signal, Such as temperature, pressure, power, rotating speed, torque audio carry out collection in worksite.
Temperature sensor includes thermal resistance temperature sensor and thermocouple temperature sensor.For example, resistance and temperature senses PT100 thermal resistance temperature sensors can be selected in device, and PT100 temperature sensors are mainly used for less than 650 DEG C of warm area, due to The high resolution of PT100 thermal resistances, the requirement to secondary meter is relatively low, therefore diesel engine warm area thermometric below 650 DEG C leads to Often select 100 ohm of platinum resistance thermometer sensor,s.And K-type thermocouple temperature sensor chemical stabilization type is higher, can in Oxidant or Less than 900 DEG C of temperature is measured in neutral medium for a long time, has replicability good, generation thermoelectrical potential is big, and good linearity, price is just Preferably.
Pressure sensor include for measure lubricating oil into machine pressure, booster exhaust back pressure based on ceramic thick film principle pass Sensor and the quartz pressure sensor for measuring cylinder pressure.Lubricating oil is measured into low frequencies such as machine pressure, booster exhaust back pressures What the pressure sensor of signal was selected be based on ceramic thick film principle sensor, ceramics be a kind of generally acknowledged high resiliency, it is anticorrosive, Wear-resistant, shock resistance and the material of vibration, by laser calibration, sensors with auxiliary electrode is steady with very high temperature stability and time Qualitative, sensor carries 0~70 DEG C of temperature-compensating, and can have high-precision, Gao Wen with most physical contact between media Qualitative, output signal is strong, good long term stability.
For example, the pressure sensor of TRAFAG companies of Switzerland can be selected in the present embodiment, it is widely used in each industry Field, especially suitable for requiring service precision high, the place of environment harshness.
The variation of diesel engine in-cylinder pressure is fast(Frequency is high)And pressure value is big, working environment is severe in cylinder, therefore measures in cylinder The sensor of pressure must be able to high temperature resistant and high pressure.Common cylinder pressure sensors operation principle and acceleration transducer one Sample is also based on piezoelectric effect.In view of high temperature and high pressure environment, it is preferred to use sensor of the quartz as piezoelectric material.It is auspicious The quartz pressure sensor 7613C of scholar Kistler companies, the combustion chamber which is mainly used under severe conditions are surveyed Amount.This sensor is substantially insensitive to residue of combustion, and with high sensitivity, linear excellent, and it is excellent that thermal shock is small etc. Point.
Power measurement sensor measures transmission shaft strain for generating under torque effect with the mode for pasting foil gauge, and adopts The rotating speed of transmission shaft is measured with photoelectric transfer sensing mode, so that it may obtain the power of diesel engine indirectly.
Due to the high speed rotation of transmission shaft, it is impossible to use traditional wired data transfer method, and wireless pass must be used Transferring technology.Strain measurement system is installed on transmission shaft, and is rotated together with transmission shaft, and strain measurement result is passed through wireless Mode is sent to data memory module.
CAN bus uses TA7V05 chips.TA7V05 can configure at pandemic 32 ARM7 of system on chip Manage the peripheral hardware of device kernel, programmable logic and many Industry Control Applications.As shown in Fig. 2, give the system block diagram of TA7V05 With key industry application interface, this system provides device drivers such as house dog, timer, clock, DSP and LED, for Family is directly used in exploitation, can largely simplify the development of CAN nodes and application system.
Data memory module is computer, is stored with diesel engine fault data, and the fault detection module is acquired according to data The module stored in the data and data memory module of module acquisition is compared, and judges the operating status of diesel engine.Data are deposited Operating parameter and various failures when storage module is stored with the operating parameter of data collecting module collected and normal diesel engine When operating parameter.Fault detection module compares these parameters, then judge diesel engine whether normal operation.Fault detection module It can also be computer, measured data and the initial data stored or data comparator or data ratio are compared in computer Compared with module.
Fault alarm module includes display screen, buzzer and alarm lamp;The display screen is used for display alarm information, buzzing Device and alarm lamp are conveniently used for audible alarm and indicator light alarm.When fault detection module detects abnormal, signal transmission is to event Hinder alarm module, display screen will intuitively show fault message, and pass through the shape of clearing lamp and audio warning Formula is to exception(Or failure)It alarms.
It is the workflow of the utility model below:
Each sensor of the data acquisition module of the utility model, which corresponds to, is mounted on the corresponding position of diesel engine, acquires bavin The operation data of oil machine, communication module use CAN bus, and data are transferred to data memory module, and fault detection module works, It detects malfunctioning module and carries out fault detect, fault alarm module shows abnormal conditions and carry out sound-light alarm.
Finally it should be noted that:Above example is only to illustrate the utility model and not limits the utility model and retouched The technical solution stated;Therefore, although this specification the utility model is had been carried out with reference to above-mentioned each embodiment it is detailed Illustrate, still, it will be understood by those of ordinary skill in the art that, still it can modify to the utility model or equally replace It changes;And technical solution and its improvement of all spirit and scope for not departing from the utility model, it should all cover new in this practicality In the right of type.

Claims (6)

1. a kind of diesel engine fault detection device, it is characterised in that:Including data acquisition module, data memory module;Failure is examined Survey module and fault alarm module;The data acquisition module is communicated by CAN bus and data memory module;The data are deposited It stores up module and communicates to connect the fault detection module;The fault detection module and the fault alarm module pass through CAN bus It communicates;The fault alarm module shows failure and alarms;The data acquisition module includes temperature sensor, pressure Force snesor, power measurement sensor, speed probe and torque sensor and audio collection sensor;The power measurement passes Sensor is installed on the mode for pasting foil gauge on transmission shaft, the rotating speed of transmission shaft is measured using photoelectric sensing mode, and should Become measurement result and be wirelessly sent to data memory module.
2. diesel engine fault detection device according to claim 1, it is characterised in that:The temperature sensor includes thermoelectricity Hinder temperature sensor and thermocouple temperature sensor.
3. diesel engine fault detection device according to claim 1, it is characterised in that:The pressure sensor includes being used for Lubricating oil is measured into machine pressure, the quartz based on ceramic thick film principle sensor and measurement cylinder pressure of booster exhaust back pressure Pressure sensor.
4. diesel engine fault detection device according to claim 1, it is characterised in that:The CAN bus uses TA7V05 Chip.
5. diesel engine fault detection device according to claim 1, it is characterised in that:The data memory module is electricity Brain, is stored with diesel engine fault data, and the fault detection module is stored according to the data and data of data collecting module collected The module stored in module is compared, and judges the operating status of diesel engine.
6. diesel engine fault detection device according to claim 1, it is characterised in that:The fault alarm module includes aobvious Display screen, buzzer and alarm lamp;The display screen is used for display alarm information, and buzzer and alarm lamp are conveniently used for audible alarm And indicator light alarm.
CN201721073710.2U 2017-08-25 2017-08-25 Diesel engine fault detection device Expired - Fee Related CN207472571U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721073710.2U CN207472571U (en) 2017-08-25 2017-08-25 Diesel engine fault detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721073710.2U CN207472571U (en) 2017-08-25 2017-08-25 Diesel engine fault detection device

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CN207472571U true CN207472571U (en) 2018-06-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632319A (en) * 2018-11-20 2019-04-16 吉林铁道职业技术学院 It is a kind of harmony in 5 locomotive diesel machine overhauling auxiliary systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632319A (en) * 2018-11-20 2019-04-16 吉林铁道职业技术学院 It is a kind of harmony in 5 locomotive diesel machine overhauling auxiliary systems

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Granted publication date: 20180608